Especially the full version , with edit history. I think a nice edit-war around some controversal articles could provide more insight to future archelogists than any well-preserved paperweight disk...
A) GaAs really IS not healthy to eat. You know that the As part of the GaAs was once used as a poison...In my old university, the cleanrooms for led and laser fabrication had some serious warnings at the sputter sources. B)... Because there the stuff really could get into the air if you vent it. LED-Dies are a) small, b) solid and c) encapsulated, which should reduce operational hazard to a minium C) Modern Blue+Phosphor LEDs are (like somebody above already mentioned) GaN based(with some indium and or phosphour).
So basically, she doesnt do jack about the real problem: The creation of the doted silicon base substrate.
And its not "nail polish" or "nail polish remober", they create a liftoff mask with a chemically activated resist and sputter on aluminium contacts. (I still prefere ZnO...)
So this is a minor improvement on a non-critical point of the whole problem...
The older lecturers (which didnt do the lecture for the first time) usually had a script that was either published for printing cost by the faculty (something like 5â), or downloadable from the internet. The newbies usually said something in the line of "my lecture is based on the books x,y,z". Which might cause you to buy them, read them in a library. Or just write your own notes during the lecture. As i have _never_ seen any need for stuff from a certain textbook that wasnt taught in the lecture.
(speaking about physics)
Ah, and yeah: After the 5th year or so, good textbooks are getting more and more rare, so you entirely depend on review papers and the lecture script. That doesnt mean that stuff like the Ashcroft dont have their place, but they are not _required_.
True. But still, notice how they use a reference movie thats basically a side-scroller to create this depth-map?
Basically, stuff like this is released for _every_ siggraph. The first few times i was still blown away, but now that i am used to it (and in academia myself, so i know the paper game), i simply cannot get excited for semething that will never see realisation.
Simple reason: They _say_ that it does this automatically.
Translation: We put some phd student on it who spend some months optimizing the settings for the 2 selected scenes so we can make a nice publication and maybe get more money.
If you just look at their steps of the workflow, the way they discribe it just isnt possible (like the way they "stereoscopically" create a depth-map from a _single_ still photograph..). Not to mention that the first scene looks like a bad video game level after their "improvement".
He was experimenting with neutralisation of carciogenic substances, like concentrated dioxin and other "makes your neighbour get 3-eyed children" stuff.
His crime was being different by working with (not so small amounts) of known carciogenic substances in a residental area. If you are using like that in a chemlab, everything has tight regulations and the equipment is regularily checked. Not so if you are messing around in your basement.
And the fact that he is a chemist doesnt reduce the problems in the slightest. I have known chmists that really stopped caring about safety.
Strange matters of viewpoint. When you said "thats not hyperbole", i though:"Omg. There are really nutcases around that are allowed to store gunpower poundwise in their garage?!".
If you want to track something, you have to know that there _is_ something. If you already know the asteroid, and have the trajectory calculated for a comparison, fine. But then you wouldnt need the survey. Its to find new/changed stuff.
So they need to have at least 1 full reference copy of the sky of the survey on storage to compare against, to look for changed "star" positions or new "points". Most likely they would need a lot more than that, because of various reasons (observation might not be ideal in every part of the sky on each day. Or IF you have some backlog, you can imidiately try to find to object in older checkpoints (now that you know where you have to look) and calculate a trajectory, etc).
Keep in mind that a single picture of one of the 4 cameras might be easily be 5Gbyte, and you see how it adds up
You, like most other people, just dont understand how fucking small the schwarzshild radius of such a black hole would be.
If all the energy of both particles gets converted into mass, and all the matter end up in a tiny black hole, this will have an energy of 5TeV max, which is less than 10^-22 kg. Now the schwarzschild radius is 2*m*G/c^2. This results in about 10^-50m, about a billion trillion times less than the planck lenght (which already tells us that this aint you normal black hole anymore). Even if it could exist at that size, looking at the crossection it could travel all the way to the center of the earth and just missing every matter. In fact, taking this tiny size into account, i dont think a proton or neutron could even get into...
I am not sure if they know them themselves... Even with an accelerator ring 2 orders of magnitude smaller, stuff and glitches can cause delays, or require checkups before full powerup.
So what exactly are you trying to tell us? That there is no problem, because you did fly ONE SINGLE TIME and your possessions werent sized? Big fucking deal.
Maybe they should get a medal because they didnt perform a full cavity search, too?
It really depends on the HD. For once, HDs dont use such basic magnetic stuff like mangetite anymore.
They use metal or glass (but i think the latter is not common anymore) discs with a sub-um thick vacuum-deposited coating on it. The magnetic storage is in some magnetically really hard-as-rock stuff like FePt. What you see is the perfectly polished base metal. If you take a closer look, you might see that its not as reflective as a real mirror
They use this curves to make a voltage->charge conversion. But take a look at them, and guess what will happen if there is only small calibration error/battery defect/heat influence, that shifts the voltage a few 10mV: Suddenly, you might already be on the curve sloping down while the device still thinks its in the middle of the platau.
Smart electronics try to learn from past discharge behaviours, but for many gadgets, its just not possible: The ipod you left in your car in the summer will behave diffrent for the next charging cycle than the one that was near freezing in the winter.
The cellphone that was just running for a week in standby will behave different after the next charge compared to the one that was drained dry in 3 hours by watching divx videos on it.
And dont even mention partial chargings, which add a hysteresis on top of this things.
Its a very difficult problem, and devices really try their best to solve it. But there is a reason why the controller board of a bigger laptop battery (that has 1% accurate meassurements) is bigger than you whole cell phone...
Seriously, those comments up to know just prove the MPAA to be perfectly correct.
In fact, i think it is a great idea, as it might show them that decent offers will get sales. Because right now, _I_ wouldnt know where to to buy movie ***** if i felt like it. Music? Yeah, amazon or itunes. But movies still feels like an unexplored country.
And i am sure that DRM-free movies wont take as long as DRM-free music did. Because music is a medium thats shared/swapped/used repeatably in a much larger degree.
A more sane conclusion (without that stupid "propritary software" nag at the end) would be:
If you want _deniability_, you have to encrypt _everything_ belonging to the system you want to deny knowledge of. Have another OS, and page file/partition around. But keep _everything_ that can be accessed by the other OS encrypted.
Otherwise, usage statistics, paged out memory, crash dumps, index files, any of a million different items could give you away.
"They use a ferromagnetic fluid of iron nanoparticles in oil instead of mercury which is too dense to be easily manipulated in this way."
Well, that and the fact that a ferrofluid (== ferromagnetic or antiferromagnetic, ir depends) is a little easier to influence with magnetic fields than an weak diamagnet like mercury...
think bigger. Nobody "has" a battery. You pay the energy, plus a "recharge fee" (which will depend on battery type, etc). Maybe a "new battery surcharge" if you really want a brand new one.
The batteries will circulate the system until they are no longer useable, at which time they will be written off already.
Slashdot Mirror
Especially the full version , with edit history.
I think a nice edit-war around some controversal articles could provide more insight to future archelogists than any well-preserved paperweight disk...
A) GaAs really IS not healthy to eat. You know that the As part of the GaAs was once used as a poison...In my old university, the cleanrooms for led and laser fabrication had some serious warnings at the sputter sources. ... Because there the stuff really could get into the air if you vent it. LED-Dies are a) small, b) solid and c) encapsulated, which should reduce operational hazard to a minium
B)
C) Modern Blue+Phosphor LEDs are (like somebody above already mentioned) GaN based(with some indium and or phosphour).
So basically, she doesnt do jack about the real problem:
The creation of the doted silicon base substrate.
And its not "nail polish" or "nail polish remober", they create a liftoff mask with a chemically activated resist and sputter on aluminium contacts. (I still prefere ZnO...)
So this is a minor improvement on a non-critical point of the whole problem...
The older lecturers (which didnt do the lecture for the first time) usually had a script that was either published for printing cost by the faculty (something like 5â), or downloadable from the internet.
The newbies usually said something in the line of "my lecture is based on the books x,y,z".
Which might cause you to buy them, read them in a library. Or just write your own notes during the lecture.
As i have _never_ seen any need for stuff from a certain textbook that wasnt taught in the lecture.
(speaking about physics)
Ah, and yeah: After the 5th year or so, good textbooks are getting more and more rare, so you entirely depend on review papers and the lecture script.
That doesnt mean that stuff like the Ashcroft dont have their place, but they are not _required_.
True. But still, notice how they use a reference movie thats basically a side-scroller to create this depth-map?
Basically, stuff like this is released for _every_ siggraph. The first few times i was still blown away, but now that i am used to it (and in academia myself, so i know the paper game), i simply cannot get excited for semething that will never see realisation.
Simple reason:
They _say_ that it does this automatically.
Translation: We put some phd student on it who spend some months optimizing the settings for the 2 selected scenes so we can make a nice publication and maybe get more money.
If you just look at their steps of the workflow, the way they discribe it just isnt possible (like the way they "stereoscopically" create a depth-map from a _single_ still photograph..).
Not to mention that the first scene looks like a bad video game level after their "improvement".
He was experimenting with neutralisation of carciogenic substances, like concentrated dioxin and other "makes your neighbour get 3-eyed children" stuff.
His crime was being different by working with (not so small amounts) of known carciogenic substances in a residental area.
If you are using like that in a chemlab, everything has tight regulations and the equipment is regularily checked.
Not so if you are messing around in your basement.
And the fact that he is a chemist doesnt reduce the problems in the slightest. I have known chmists that really stopped caring about safety.
Strange matters of viewpoint.
When you said "thats not hyperbole", i though:"Omg. There are really nutcases around that are allowed to store gunpower poundwise in their garage?!".
Well. This actually is kind of obvious:
If you want to track something, you have to know that there _is_ something.
If you already know the asteroid, and have the trajectory calculated for a comparison, fine. But then you wouldnt need the survey. Its to find new/changed stuff.
So they need to have at least 1 full reference copy of the sky of the survey on storage to compare against, to look for changed "star" positions or new "points".
Most likely they would need a lot more than that, because of various reasons (observation might not be ideal in every part of the sky on each day. Or IF you have some backlog, you can imidiately try to find to object in older checkpoints (now that you know where you have to look) and calculate a trajectory, etc).
Keep in mind that a single picture of one of the 4 cameras might be easily be 5Gbyte, and you see how it adds up
You, like most other people, just dont understand how fucking small the schwarzshild radius of such a black hole would be.
If all the energy of both particles gets converted into mass, and all the matter end up in a tiny black hole, this will have an energy of 5TeV max, which is less than 10^-22 kg. ...
Now the schwarzschild radius is 2*m*G/c^2.
This results in about 10^-50m, about a billion trillion times less than the planck lenght (which already tells us that this aint you normal black hole anymore).
Even if it could exist at that size, looking at the crossection it could travel all the way to the center of the earth and just missing every matter.
In fact, taking this tiny size into account, i dont think a proton or neutron could even get into
If you are running vista on a computer with 1GB ram, you are beyond help anyway.
Yup.
Somewhere else, i read about using "nuclear sub" style reactors for the electricity...
Well, regarding cooling, i do not think there are two more different scenarios possible...
I am not sure if they know them themselves...
Even with an accelerator ring 2 orders of magnitude smaller, stuff and glitches can cause delays, or require checkups before full powerup.
So what exactly are you trying to tell us? That there is no problem, because you did fly ONE SINGLE TIME and your possessions werent sized?
Big fucking deal.
Maybe they should get a medal because they didnt perform a full cavity search, too?
Sorry, "-1 retard" mod option isnt available.
And i just _love_ your use of the word censoring. Really.
Maybe you want to look it up...
You are part of the problem
It really depends on the HD.
For once, HDs dont use such basic magnetic stuff like mangetite anymore.
They use metal or glass (but i think the latter is not common anymore) discs with a sub-um thick vacuum-deposited coating on it. The magnetic storage is in some magnetically really hard-as-rock stuff like FePt.
What you see is the perfectly polished base metal.
If you take a closer look, you might see that its not as reflective as a real mirror
No, like the article, you dont get it:
They use this curves to make a voltage->charge conversion.
But take a look at them, and guess what will happen if there is only small calibration error/battery defect/heat influence, that shifts the voltage a few 10mV: Suddenly, you might already be on the curve sloping down while the device still thinks its in the middle of the platau.
Smart electronics try to learn from past discharge behaviours, but for many gadgets, its just not possible: The ipod you left in your car in the summer will behave diffrent for the next charging cycle than the one that was near freezing in the winter.
The cellphone that was just running for a week in standby will behave different after the next charge compared to the one that was drained dry in 3 hours by watching divx videos on it.
And dont even mention partial chargings, which add a hysteresis on top of this things.
Its a very difficult problem, and devices really try their best to solve it.
But there is a reason why the controller board of a bigger laptop battery (that has 1% accurate meassurements) is bigger than you whole cell phone...
Seriously, those comments up to know just prove the MPAA to be perfectly correct.
In fact, i think it is a great idea, as it might show them that decent offers will get sales.
Because right now, _I_ wouldnt know where to to buy movie ***** if i felt like it.
Music? Yeah, amazon or itunes. But movies still feels like an unexplored country.
And i am sure that DRM-free movies wont take as long as DRM-free music did. Because music is a medium thats shared/swapped/used repeatably in a much larger degree.
A more sane conclusion (without that stupid "propritary software" nag at the end) would be:
If you want _deniability_, you have to encrypt _everything_ belonging to the system you want to deny knowledge of.
Have another OS, and page file/partition around. But keep _everything_ that can be accessed by the other OS encrypted.
Otherwise, usage statistics, paged out memory, crash dumps, index files, any of a million different items could give you away.
"They use a ferromagnetic fluid of iron nanoparticles in oil instead of mercury which is too dense to be easily manipulated in this way."
Well, that and the fact that a ferrofluid (== ferromagnetic or antiferromagnetic, ir depends) is a little easier to influence with magnetic fields than an weak diamagnet like mercury...
You know why they dropped "computers" from their name?
Check again how much of their revenue is iPOD and itunes...
think bigger.
Nobody "has" a battery.
You pay the energy, plus a "recharge fee" (which will depend on battery type, etc).
Maybe a "new battery surcharge" if you really want a brand new one.
The batteries will circulate the system until they are no longer useable, at which time they will be written off already.
About Hans being smarter, please speak for yourself.
His choice of female companionship speaks for itself.